Well, I would say that lack of knowledge would be part of the issue to begin with. Just cause you could probably have extremely outdated drivers... or it could be something totally different, that you just don't know to look for. That's the one thing with PC gaming, that it's a lot more hands on and not just simple stick disk in and play as consoles are.
My only suggestion is to start by updating your drivers to the latest version and then go from there.
Latest version is 12.6 and can be downloaded from here. http://support.amd.com/us/Pages/AMDSupportHub.aspx
Just fill out the info on the right side to get to the driver you need. Let us know how it goes!